The company did not specify which site had been compromised, but said authorities had been notified and an investigation is underway.

A Ubisoft website has been hacked exposing customer data including names and encrypted passwords. The company released a statement on Tuesday admitting that an account database has been illegally accessed, and that an investigation had begun. Although no credit card or other payment details are kept on the www.ubi.com site, the publisher of such titles as Assassin's Creed and Far Cry 3 has told users to change their passwords.